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B&T CPA is a Certified Public Accounting firm servicing US subsidiaries of international groups.

We are focused on mid-size private companies acting in various industries, including manufacturing, franchise, retail and distribution, pharmaceutical and biotechnology, digital services and services.

Our Firm offers audit and attest services, transaction services, tax services, consulting and advisory services.

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Welcome: Welcome
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About Us

Your International CPAs

Our international expertise coupled with our Big 4 experience makes our team extremely valuable to investors and companies wishing to develop business in the United States.

The rise of digital technologies has been a major change to the global economy, including CPA firms. Integrating digital technology in our services is our cornerstone. Our approach allows us to dematerialize our services and communication, leading to significant increase in the effectiveness of our value proposition.

Audit and attest services are our core business. Our team is dedicated to be responsive and proactive in order to provide the best experience to our clients while ensuring the respect of professional standards and the AICPA's code of professional conduct.

Welcome: About

Our Services

Welcome: Services
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Documents and Blurred Business Men

Audit &

Attest Services


Statutory Audit

Contractual Audit

Component Auditor - Reporting to Group Auditors




Agreed-Upon Procedures

Tax Services

Tax Compliance

Preparation of Corporate Tax Returns (income tax, sales tax, etc.)

Tax Planning

Nexus Analysis - Focus on early stage US implantation for tax planning purposes

Tax Consulting

Tax Audit Assistance

Assistance with federal and other jurisdictions tax audit

Consulting &

Advisory Services


Bookkeeping & Administrative Assistance

Preparation of Group Reporting & Financial Statements under  US GAAP, IFRS and French GAAP

Consulting & Advisory

Software implementation focusing on fully integrated cloud-based accounting platforms 

Payroll Services

 Employee Benefits Implementation

Transaction Services

Due Diligence

Financial Due Diligence

Tax Due Diligence


Coordination with Attorneys for Legal & HR Due Diligence

Our Team

Welcome: Team Members

Marc Trost, Partner

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CPA and French chartered accountant with more than 15 years of experience, Marc started his career in Luxembourg before joining PricewaterhouseCoopers Paris. Marc mainly worked with foreign investors in France, providing accounting, tax and audit services.


Marc relocated to the U.S. in 2012 and acquired a strong experience with servicing the French community living or doing business in the U.S.


Marc notably serves clients in the franchise, manufacturing, distribution, pharma and service industries. 


Yoann Brugiere, Partner

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CPA and French chartered accountant with more than 10 years of experience, Yoann started his career at Ernst & Young Paris where he mainly worked with foreign investors in France providing accounting, tax and audit services.


Yoann relocated to the U.S. in 2012 and has been servicing U.S. subsidiaries of European groups, as well as foreign individuals doing business in the U.S. His extensive experience includes providing audit, financial and tax services to clients from different industries ranging from large multinationals to small and mid-sized private companies.

Yoann primarily serves clients in the biotech and phama industries, as well as the tech industry.

Contact Us

Call Us

(404) 487-0690

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Let's Meet

1629 K St. NW, Suite 300 ​

Washington, DC 20006

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